Clock: At 5 o’clock a clock ticks 5 times. The time gap between the first and last tick is 40 seconds. How long does the clock tick when it is 12 o’clock in the clock?

If at 7 o’clock, the clock ticks 5 times, then it means that there were 4 time intervals. Thus, the time duration of each interval = 40/4 = 10 seconds At 12 o’clock, the clock will tick 12 times and the number of intervals shall be 11 So, the total time for which the clock ticks = 11×10 = 110 seconds